@Mondobizarrro @kaia @SuperDicq
Rust is a weird one, I can't remember seeing a car with rust for 25 years here. As far as I can see, cars have not been able to rust since the mid 90s. But it is also illegal to put salt on roads here.
If you are going to buy an older car, choose a really common model.
The most popular used car here is Mazda 2 or Demio.